and she overheard david mcmannis respond, "she had to die." >> reporter: not very believable, said the defense attorneys. just people making things up, said barr's lawyer >> we contended that those conversations never took place. snitches.er: some of those >> i never met a confidential informant that's gonna inform just 'cause he wants to be a nice guy or a good citizen. there's always something in it for him. >> reporter: that woman, the star witness found by the cold case team, who said she saw the two men coming and going from tara's house? >> could it be she made herself believe this over so much of a time to make sure the bad guy goes away? >> reporter: dave mcmannis's attorney, michael bross, said his view those detectives focused on the wrong man. said phil barr's accomplice must have been peewee st. john, the man who'd turned in jewelry three days after tara went missing. >> there's enough circumstantial evidence to believe that he was involved if not in the murder, but definitely in the complicity